Shoulder-trimming machine



Aug. 3 1926.

- A. H. MAUTZ SHOULDER TRIMMING MACHINE Filed Jan. 25. 1926 l .AT1-omver Patented Aug. 3, 1926.

UNITED STATES ALVA. H. MA'UTZ, OF EFFINGHAM, ILLINOIS.

SHOULDER-TRIMMING MACHINE.

Application led January 25, 1926. Serial No. 83,443.

My invention relates to improvements in shoulder trimming machines, and has for its object to produce a traveling machine designed to cut and level, on a desired angle, a strip or shoulder of earth contiguous to the finished surface of a hard road.

In the prevalent standard concrete highway construction there is left outside the limits of the outer edges of the hard road a shoulder, a belt or strip of earth which is usually required by law or regulation to be leveled ofi, either horizontally, orsloping downwardlyffrom the outer parallel margins of the hard road. It is the object of the machine of my invention to treat by a trimming element that softV earth shoulder in compliance with the specificationsmf such laws or regulations, and to treat or finish the outer edge of said shoulder by means of a tool mounted, adjustably or otherwise, at the outer terminal of the trimming element.

Drawings.

Fig. 2 is a top plan view of the same.

Description.

In the drawings A indicates the finished surface of a hard road, having the outer edge 3, beyond which outer edge 3 lies the earthen shoulder B and scored at its outer edge 4.

The traveling frame C has longitudinal sills 5 and 6 and travels on wheels 7. Hinged at 8 to the outer sill 6 is the moldboard- 9 carrying the scraper-blade 10, and having a standard 11 connected to the handlever 12 by the strap 13.

A cross-brace 14 of the frame C has the segmental rack 15 with which the plunger 16 (mounted on the hand-lever 12) engages to hold the blade 10 elevated out of working position (see dotted lines in Fig. 1) and permitting the machine to travel idle for purposes of transportation; by proper manipulation of the hand-lever 12 the scraperblade 10 is lowered to or below the horizontal and into working position.

At its outer terminal the scraper-blade 10 carries the scoring or finishing tool 17, pivoted to the blade 10 at 18. A collar 19 fixed on the mold-board 9 loosely receives the which is to be leveled threaded pin 20, which pin 20 is hinged at its outer terminal to the outer end of the tool 17 and adjustably secured by nuts 21- 21 mounted on the opposite ends of the collar 19.

Thusthe .shoulder-edge finishing tool 17 tual use I have found it necessary to have means holding the traveling frame C against the edge 3 of the hard road'A, to resist the inward thrust occasioned by the engagement of the plate 10 with the earth shoulder B. This I have accomplished by the use of a guide-bar 24, vertically and adjustably mounted upon the outer face of the sill 6 by means of the bolts 25, and extending sufficiently below the plane of the top' surface of the road A, as shown in Fig. 1, to present a sufficient bearing surface against the edge 3.

Various modifications of the structure of the machine shown and described may be acoomplished without departure from my actual invention as defined in the following claims.

Claims.

I cla-im:--

1. A shoulder'trimmingmachine comprising a traveling frame arranged to travel along the edge of a finished hard road; means to hold said frame in alinement with the edge of said hard road; and a trimming element mounted on said frame and arranged to trim a predetermined width of earthen shoulder contiguous to said hard road.

2. A shoulder trimming machine comprising a traveling frame arranged to travel along the edge of a finished hard road; means to holdv said frame in alinement with the edge of said hard road; and a trimming element mounted on said frame and arranged to trim a predetermined width of earthen shoulder contiguous to said hard road; in combination vwith a. scoring tool mounted on the outer end of said trimming element.

3. A shoulder trimming machine compris'- ing a traveling frame arranged to travel along the edge of a finished hard road; means to hold said frame in alinement with the edge of said hard road, and a trimming element mounted on said frame and arranged to trim a predetermined Width of earthen shoulder contiguous to said hard road; in combination with a scorin tool adjustably` mounted on the outer en of said trimming element. 10

In testimony whereof I have hereunto affixed my signature.

ALVA H. MAUTZ. 

